In the 21st century, the theories regarding the existence of aliens refuse to dial down. Now, the recently resurfaced NASA photo of Martian planet has gone viral on various social media ...

The strangely shaped object - snapped by NASA's Opportunity rover - has resurfaced and reignited wild theories about little ...

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

Space exploration was a major theme of a state House hearing on Tuesday, even as the budget deadline looms over lawmakers.

SETI Institute's radio scans of interstellar comet 3I/ATLAS found no evidence of alien technology, confirming its natural origins.

In June 1947, Kenneth Arnold saw something strange in the sky. What he saw sparked a national UFO craze-but it was far from ...

When the U.S. was born, humanity was still seven years away from balloon-borne flight. Where might we be another 250 years from now, should the nation be fortunate enough to survive that long?

Elon Musk has repeatedly said on record that neither he nor anyone at his company, SpaceX, has been provided any evidence that extraterrestrial life exists. However, journalist Ross Coulthart remains ...

NASA has announced yet another milestone for the Perseverance rover: It's officially traversed the length of a marathon on ...

NASA wants to send an ambitious fleet of helicopters to soar through Martian skies—but scientists fear the endeavor could ...